T Slot Duplex Socket

1. All these duplex socket outlet are made by the best-renowned manufacturers in the world. And all these duplex socket outlet are user friendly. Here, you can find all types of duplex socket outlet that you need in your daily life. As we all know that these duplex socket outlet play a key role in transmitting the power into our devices.
2. Similar to standard duplex receptacles in that they accommodate two-prong electrical plugs, but are missing the U-shaped grounding hole. Polarized with one long (neutral) slot and a shorter (hot) slot.

Your home may have vintage style outlets that have long since lost their covers.

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Find pictures of old electrical outlets and links to brand new replacement covers below.

Guide to Replacing Vintage Outlet Covers In Your Home

1. T-slot duplex socket
These vintage 250v T-slot outlets fit standard duplex covers.
However, this device has been banned since the '60s because of its lack of a ground or neutral. Rather than adding a cover to this outdated outlet, you should update to a more modern 125V outlet.
2. Sierra Triplex Receptacle
This 3-plug receptacle is an old Sierra Triplex Outlet.
New triplex covers are available in white and ivory.

T Slot Duplex Socket Wrench

Note that devices darken over time, so a new cover won't be an exact match in finish to an old device like this one.

3. Triple Plug
Here's another example of a triplex outlet that is built into the cover plate.
These are no longer manufactured, so a modern update should be installed in its place.
An oversized cover may be required to cover the cutout in the wall.
4. Sierra Electric Square Simplex Outlet
Find new square simplex outlet covers for these vintage Sierra Electric plugs.

5. Sierra Despard Outlets
This small 2-prong sockets may share a plate with switches as shown below.
These are examples of despard devices, which fit despard covers sold here.

Odd Jacks in Older Homes

You may find some strange looking 'plugs' in your home that are actually phone jacks, like the 2 examples shown below.

T-slot Duplex Socket

4-Prong Sierra Electric Phone Jack
Buy replacement covers for 4-prong Sierra jacks.

T Slot Duplex Socket Adapters

4-Prong Bell Systems Phone Jacks
Buy covers for Bell Systems 4 prong jacks.

T Slot Duplex Socket

Looking for vintage cover plates for other jacks or old switches?
Check out our Comprehensive Guide to Identifying and Replacing Old Switches, Jacks, Outlets & Covers.